The price comparison per ounce of silver between the two is just not there.
Gold and silver are similar is someways but depending upon their actual value to industry vs their value to the economy, they fluctuate somewhat independent.
Therefor I buy equal values of BOTH and will sell only when it is prudent and when that (silver vs gold) is peaked or peaking.
The other will peak at another time but I am covered by keeping a balance at most time and purchasing for replacement when it is lower in the cycle.